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🤖 refactor: make command palette a workspace switcher by default (#477)
Makes the command palette primarily a **workspace switcher** by default, with all commands still accessible via prefix keys. ## Motivation The command palette was showing all commands by default, but workspace switching is the most common use case. This change optimizes for the common case while keeping everything accessible. ## Changes ### Behavior - **Default** (no prefix): Shows only workspace commands (switch, create, rename, delete, etc.) - **`>` prefix**: Shows all commands across all sections (Navigation, Chat, Modes, Projects, Help) - **`/` prefix**: Shows slash commands for chat input (existing behavior) ### Code Quality Took this opportunity to clean up surrounding code: - **Extracted `resetPaletteState()` helper** - State reset logic was duplicated 4 times across the component - **Exported `COMMAND_SECTIONS` constant** - Section names are now centralized and type-safe - **Removed unused variable** - `searchQuery` was declared but never used - **Added custom filter function** - Properly handles `>` prefix in cmdk filtering ### Documentation - Added command palette section to `docs/keybinds.md` explaining the three modes - Updated Storybook story with accurate feature descriptions - Fixed section name inconsistency in Storybook (was "Workspace", now "Workspaces") ## Testing - ✅ TypeScript type checking passes - ✅ Prettier formatting passes - ✅ Logic verified with unit test simulation - ✅ All existing functionality preserved ## Before/After **Before:** - Opens with all commands visible - User must scroll/search through Navigation, Chat, Mode, Project, Help sections to find workspaces **After:** - Opens with only workspace commands (the primary use case) - Type `>` to instantly see all other commands when needed - Faster workflow for the most common action _Generated with `cmux`_
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‎docs/AGENTS.md‎

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@@ -209,6 +209,7 @@ This project uses **Make** as the primary build orchestrator. See `Makefile` for
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**TDD is the preferred development style for agents.**
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- **When asked to do TDD, write tests in the repository** - Create proper test files (e.g., `src/utils/foo.test.ts`) that run with `bun test` or `jest`, not temporary scripts in `/tmp`. Tests should be committed with the implementation.
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- Prefer relocated complex logic into places where they're easily tested
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- E.g. pure functions in `utils` are easier to test than complex logic in a React component
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- Strive for broad coverage with minimal tests

‎docs/keybinds.md‎

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@@ -54,6 +54,16 @@ When documentation shows `Ctrl`, it means:
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| Open command palette | `Ctrl+Shift+P` |
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| Toggle sidebar | `Ctrl+P` |
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### Command Palette
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The command palette (`Ctrl+Shift+P`) has two modes:
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- **Default (no prefix)**: Workspace switcher - shows only switching commands
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- **`>` prefix**: Command mode - shows all other commands (create/delete/rename workspaces, navigation, chat, modes, projects, etc.)
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- **`/` prefix**: Slash commands - shows slash command suggestions for inserting into chat
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This separation keeps the switcher clean and fast while making all other commands easily accessible via `>`.
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## Tips
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- **Vim-inspired navigation**: We use `J`/`K` for next/previous navigation, similar to Vim

‎src/components/CommandPalette.stories.tsx‎

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@@ -12,7 +12,7 @@ const mockCommands: CommandAction[] = [
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id: "workspace.create",
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title: "Create New Workspace",
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subtitle: "Start a new workspace in this project",
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section: "Workspace",
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section: "Workspaces",
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keywords: ["new", "add", "workspace"],
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shortcutHint: "⌘N",
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run: () => action("command-executed")("workspace.create"),
@@ -21,7 +21,7 @@ const mockCommands: CommandAction[] = [
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id: "workspace.switch",
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title: "Switch Workspace",
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subtitle: "Navigate to a different workspace",
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section: "Workspace",
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section: "Workspaces",
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keywords: ["change", "go to", "workspace"],
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shortcutHint: "⌘P",
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run: () => action("command-executed")("workspace.switch"),
@@ -30,7 +30,7 @@ const mockCommands: CommandAction[] = [
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id: "workspace.delete",
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title: "Delete Workspace",
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subtitle: "Remove the current workspace",
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section: "Workspace",
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section: "Workspaces",
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keywords: ["remove", "delete", "workspace"],
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run: () => action("command-executed")("workspace.delete"),
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},
@@ -183,18 +183,24 @@ export const Default: Story = {
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reopen it.
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<br />
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<br />
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<strong>Features:</strong>
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<strong>Two Modes:</strong>
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<br />• <strong>Default</strong>: Workspace switcher (only shows switching commands)
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<br />•{" "}
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<strong>
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Type <kbd>&gt;</kbd>
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</strong>
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: Command mode (shows all other commands)
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<br />•{" "}
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<strong>
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Type <kbd>/</kbd>
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</strong>
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: Slash commands for chat input
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<br />
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• Type to filter commands by title, subtitle, or keywords
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<br />
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• Use ↑↓ arrow keys to navigate
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<br />
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• Press Enter to execute a command
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• Use ↑↓ arrow keys to navigate, Enter to execute
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<br />
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• Press Escape to close
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<br />• Start with <kbd>/</kbd> to see slash commands
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<br />• Commands are organized into sections (Workspace, Chat, Mode, Settings, Project,
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Help)
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<br />• Commands organized into sections (Workspaces, Chat, Mode, Settings, Project, Help)
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</div>
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<PaletteDemo />
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</div>

‎src/components/CommandPalette.test.ts‎

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@@ -0,0 +1,127 @@
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import { describe, expect, test } from "bun:test";
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import { filterCommandsByPrefix } from "@/utils/commandPaletteFiltering";
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import { CommandIds, CommandIdMatchers } from "@/utils/commandIds";
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/**
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* Tests for command palette filtering logic
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* Property-based tests that verify behavior regardless of specific command data
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*/
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describe("CommandPalette filtering", () => {
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describe("property: default mode shows only ws:switch:* commands", () => {
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test("all results start with ws:switch:", () => {
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const actions = [
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{ id: CommandIds.workspaceSwitch("1") },
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{ id: CommandIds.workspaceSwitch("2") },
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{ id: CommandIds.workspaceNew() },
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{ id: CommandIds.navToggleSidebar() },
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];
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const result = filterCommandsByPrefix("", actions);
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expect(result.every((a) => CommandIdMatchers.isWorkspaceSwitch(a.id))).toBe(true);
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});
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test("excludes all non-switching commands", () => {
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const actions = [
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{ id: CommandIds.workspaceSwitch("1") },
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{ id: CommandIds.workspaceNew() },
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{ id: CommandIds.workspaceRemove() },
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{ id: CommandIds.navToggleSidebar() },
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];
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const result = filterCommandsByPrefix("", actions);
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expect(result.some((a) => !CommandIdMatchers.isWorkspaceSwitch(a.id))).toBe(false);
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});
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});
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describe("property: > mode shows all EXCEPT ws:switch:* commands", () => {
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test("no results start with ws:switch:", () => {
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const actions = [
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{ id: CommandIds.workspaceSwitch("1") },
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{ id: CommandIds.workspaceNew() },
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{ id: CommandIds.navToggleSidebar() },
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{ id: CommandIds.chatClear() },
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];
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const result = filterCommandsByPrefix(">", actions);
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expect(result.every((a) => !CommandIdMatchers.isWorkspaceSwitch(a.id))).toBe(true);
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});
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test("includes all non-switching commands", () => {
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const actions = [
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{ id: CommandIds.workspaceSwitch("1") },
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{ id: CommandIds.workspaceNew() },
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{ id: CommandIds.workspaceRemove() },
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{ id: CommandIds.navToggleSidebar() },
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];
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const result = filterCommandsByPrefix(">", actions);
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// Should include workspace mutations
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expect(result.some((a) => a.id === CommandIds.workspaceNew())).toBe(true);
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expect(result.some((a) => a.id === CommandIds.workspaceRemove())).toBe(true);
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// Should include navigation
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expect(result.some((a) => a.id === CommandIds.navToggleSidebar())).toBe(true);
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// Should NOT include switching
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expect(result.some((a) => a.id === CommandIds.workspaceSwitch("1"))).toBe(false);
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});
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});
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describe("property: modes partition the command space", () => {
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test("default + > modes cover all commands (no overlap, no gaps)", () => {
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const actions = [
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{ id: CommandIds.workspaceSwitch("1") },
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{ id: CommandIds.workspaceSwitch("2") },
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{ id: CommandIds.workspaceNew() },
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{ id: CommandIds.workspaceRemove() },
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{ id: CommandIds.navToggleSidebar() },
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{ id: CommandIds.chatClear() },
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];
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const defaultResult = filterCommandsByPrefix("", actions);
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const commandResult = filterCommandsByPrefix(">", actions);
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// No overlap - disjoint sets
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const defaultIds = new Set(defaultResult.map((a) => a.id));
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const commandIds = new Set(commandResult.map((a) => a.id));
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const intersection = [...defaultIds].filter((id) => commandIds.has(id));
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expect(intersection).toHaveLength(0);
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// No gaps - covers everything
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expect(defaultResult.length + commandResult.length).toBe(actions.length);
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});
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});
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describe("property: / prefix always returns empty", () => {
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test("returns empty array regardless of actions", () => {
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const actions = [
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{ id: CommandIds.workspaceSwitch("1") },
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{ id: CommandIds.workspaceNew() },
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{ id: CommandIds.navToggleSidebar() },
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];
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expect(filterCommandsByPrefix("/", actions)).toHaveLength(0);
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expect(filterCommandsByPrefix("/help", actions)).toHaveLength(0);
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expect(filterCommandsByPrefix("/ ", actions)).toHaveLength(0);
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});
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});
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describe("property: query with > prefix applies to all non-switching", () => {
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test(">text shows same set as > (cmdk filters further)", () => {
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const actions = [
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{ id: CommandIds.workspaceSwitch("1") },
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{ id: CommandIds.workspaceNew() },
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{ id: CommandIds.navToggleSidebar() },
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];
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// Our filter doesn't care about text after >, just the prefix
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const resultEmpty = filterCommandsByPrefix(">", actions);
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const resultWithText = filterCommandsByPrefix(">abc", actions);
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expect(resultEmpty).toEqual(resultWithText);
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});
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});
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});

‎src/components/CommandPalette.tsx‎

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@@ -5,6 +5,7 @@ import type { CommandAction } from "@/contexts/CommandRegistryContext";
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import { formatKeybind, KEYBINDS, isEditableElement, matchesKeybind } from "@/utils/ui/keybinds";
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import { getSlashCommandSuggestions } from "@/utils/slashCommands/suggestions";
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import { CUSTOM_EVENTS, createCustomEvent } from "@/constants/events";
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import { filterCommandsByPrefix } from "@/utils/commandPaletteFiltering";
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interface CommandPaletteProps {
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getSlashContext?: () => { providerNames: string[]; workspaceId?: string };
@@ -42,32 +43,34 @@ export const CommandPalette: React.FC<CommandPaletteProps> = ({ getSlashContext
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}>(null);
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const [promptError, setPromptError] = useState<string | null>(null);
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const resetPaletteState = useCallback(() => {
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setActivePrompt(null);
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setPromptError(null);
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setQuery("");
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}, []);
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// Close palette with Escape
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useEffect(() => {
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const onKey = (e: KeyboardEvent) => {
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if (matchesKeybind(e, KEYBINDS.CANCEL) && isOpen) {
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e.preventDefault();
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setActivePrompt(null);
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setPromptError(null);
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setQuery("");
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resetPaletteState();
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close();
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}
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};
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window.addEventListener("keydown", onKey);
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return () => window.removeEventListener("keydown", onKey);
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}, [isOpen, close]);
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}, [isOpen, close, resetPaletteState]);
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// Reset state whenever palette visibility changes
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useEffect(() => {
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if (!isOpen) {
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setActivePrompt(null);
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setPromptError(null);
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setQuery("");
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resetPaletteState();
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} else {
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setPromptError(null);
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setQuery("");
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}
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}, [isOpen]);
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}, [isOpen, resetPaletteState]);
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const rawActions = getActions();
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} satisfies { groups: PaletteGroup[]; emptyText: string | undefined };
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}
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const filtered = [...rawActions].sort((a, b) => {
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// Filter actions based on prefix (extracted to utility for testing)
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const actionsToShow = filterCommandsByPrefix(q, rawActions);
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const filtered = [...actionsToShow].sort((a, b) => {
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const ai = recentIndex.has(a.id) ? recentIndex.get(a.id)! : 9999;
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const bi = recentIndex.has(b.id) ? recentIndex.get(b.id)! : 9999;
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if (ai !== bi) return ai - bi;
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}, [currentField, activePrompt]);
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const isSlashQuery = !currentField && query.trim().startsWith("/");
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const isCommandQuery = !currentField && query.trim().startsWith(">");
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// Enable cmdk filtering for all cases except slash queries (which we handle manually)
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const shouldUseCmdkFilter = currentField ? currentField.type === "select" : !isSlashQuery;
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let groups: PaletteGroup[] = generalResults.groups;
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<div
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className="fixed inset-0 z-[2000] flex items-start justify-center bg-black/40 pt-[10vh]"
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onMouseDown={() => {
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setActivePrompt(null);
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setPromptError(null);
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setQuery("");
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resetPaletteState();
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close();
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}}
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>
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<Command
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className="bg-separator border-border text-lighter font-primary w-[min(720px,92vw)] overflow-hidden rounded-lg border shadow-[0_10px_40px_rgba(0,0,0,0.4)]"
366372
onMouseDown={(e: React.MouseEvent) => e.stopPropagation()}
367373
shouldFilter={shouldUseCmdkFilter}
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filter={(value, search) => {
375+
// When using ">" prefix, filter using the text after ">"
376+
if (isCommandQuery && search.startsWith(">")) {
377+
const actualSearch = search.slice(1).trim().toLowerCase();
378+
if (!actualSearch) return 1;
379+
if (value.toLowerCase().includes(actualSearch)) return 1;
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return 0;
381+
}
382+
// Default cmdk filtering for other cases
383+
if (value.toLowerCase().includes(search.toLowerCase())) return 1;
384+
return 0;
385+
}}
368386
>
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<Command.Input
370388
className="bg-darker text-lighter border-hover w-full border-b border-none px-3.5 py-3 text-sm outline-none"
@@ -375,7 +393,7 @@ export const CommandPalette: React.FC<CommandPaletteProps> = ({ getSlashContext
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? currentField.type === "text"
376394
? (currentField.placeholder ?? "Type value…")
377395
: (currentField.placeholder ?? "Search options…")
378-
: `Type a command… (${formatKeybind(KEYBINDS.CANCEL)} to close, ${formatKeybind(KEYBINDS.SEND_MESSAGE)} to send in chat)`
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: `Switch workspaces or type > for all commands, / for slash commands…`
379397
}
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autoFocus
381399
onKeyDown={(e: React.KeyboardEvent) => {
@@ -389,9 +407,7 @@ export const CommandPalette: React.FC<CommandPaletteProps> = ({ getSlashContext
389407
} else if (e.key === "Escape") {
390408
e.preventDefault();
391409
e.stopPropagation();
392-
setActivePrompt(null);
393-
setPromptError(null);
394-
setQuery("");
410+
resetPaletteState();
395411
close();
396412
}
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return;

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